Water-heating device.



C. A. McNEIR.

WATER HEATING DEVICE. APPLICATION FILED JUNE2. 19:6.

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' 4 Carlos A..MNeir his fifio 'n'e CARLOS "A. MCNEIR, F MINNEAPOLIS, MINNESOTA.

. WATER-HEATING DEVICE.

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Specification of Letters Patent.

Patented Feb.26,1918.

Application filed June 2, 1916. Serial No. 101,274.

- To all whom it may concern:

Be it known that 1, CARLOS A. MoNmn, a citizen of the United States, residing at h linneap'olis, in the county of l-Tennepin and State of Minnesota, have invented certain new and useful Improvements in ater- Heating Devices, of which the following is a specification.

My invention relates to water-heating devices for gas burners andhas for an object to provide a water-circulating member which may be suspended from and secured to the ordinary grate used on gas stoves above the burner proper so as to utilize the heat ordinarily wasted in regular cooking operations for heating water. A further object is to bring the'inlet and outlet pipes into the circulating member from the rear and to provide partitions in the member so that all of the water takes a long circuitous path and is hence brought up to the desired temperature most quickly. A still further object is to position the water-circulating member so that the same does not greatly obstruct the passage of the hot gases and yet presents a maximum heating surface thereto.

The full objects and advantages of my invention will appear in connection with the detailed description. thereof and are particularly pointed out in the claims.

In the drawings, illustrating the application of my invention in one form,

Figure 1 is a plan view of a portion of a gas stove showing the application of my invention. Fig. 2 is an elevational sectional view taken on line 2-2 of Fig. 1. Fig. 3 is a sectional plan view of my water-circulating member removed from the grate.

A. portion of a gas stove of ordinary construction having a separate grate for each pair of burners is illustrated in Figs. 1 and 2. A body 10 is provided with a top 11 which has a shoulder 12 within the same adapted to support. a grate 13 on a level with the upper surface of the same. Grate 13 comprises a perimetric portion 14: formed with a number of through grate bars 15 and a number of cut-ofi bars 16 and 17 of which her is best shown in Figs. 1 and 2 and comprises two circular tubularportions 27 and 28 interconnected by a straight tubular portion 29 and terminating at the same end in an inlet 30 and an outlet 31. The interior of the circulating member is divided as best shown in Fig. 3 into a single circuitous passageway by two partition walls 32 and 33 located at the portion 29 and in proximity to the inlet 30 and outlet 31 and extending across said circular portions. In this manner the water is caused to travel completely throughout every chamber in the member before it finally leaves the same, thus tending to heat the water more thoroughly and eliminating all possibilities of accident due to pockets in which the water can settle and be converted into steam. The portions 27 and 28 are preferably formed elliptical in cross section and are so positioned as to give a conical effect to the same. This is especially advantageous as it places the heating member edgewise in the path of travel of the burning gases which subjects a maXimum heating surface to the hot gases without obstructing the passage of the same. The circulating member may be constructed of tubing of the desired shape rolled into form and brazed or welded together if desired, or the same may be cast in one piece as shown in the drawings.

The devices for securing the water-circulating member to the grate are best shown in Figs. 1 and 2. They comprise a number of clips 34 which have a lower hooked portion 35 adapted to catch the member about the tubular rings 28 and 27. These clips are preferably made of a soft metal and have an upstanding portion 36 adapted to be bent over the grate bars 16 as clearly shown in Fig. 1. The member is thus rigidly supported to the grate and due to the fact that the clips are easily bent and may be hooked upon the member at any point, the device can readily be attached to any form of grate.

The advantages of my invention are manifest. The device may be used with an ordinary gas stove without changing the grate or any parts of the same. The inlet and outlet pipes are situated close to each other at the rear and hence can be directly connected to the reservoir.

I claim: 7

'1. A water-heating device comprising a Wetter-circulatingmember having a. hollow ring portion elliptical in cross section and formed in the shape of the 2it'rustulnof a cone, and means for holding thesame positioned oyer the .hurnerpf a gas stove.

2.1111 combinat on with the grate and burners of gt gg s stove a ;w;1terhe tin g de- Vice comprising a watercirculating member haying a l hollow ring portion elliptical in cross'section endgfornied in gthe shape ofthe frustum of a cone, andmeens fonholding the same with the smaller end, of the rf rustum iws oti nl r v l -bfirn r JA wets -heetin fl Comprising water-circulating member having a pair of hollow ring portions, a neck connecting said ring portions, apartition in said neck extending across both of said ring portions, :1 second partition extending across one of said ring portions opposite to the neck and inlet and outlet pipes formed on said lastnalned ring member on opposite sides of said last-na-m ed partition, making a single circuitous passageway through the member. and means for attaching the same to the greteofe gas stove.

Intestimony whereof I my signature in presence of two witnesses.

CARLQS A. M NEIR. Witnesses F. A. W ITELEY, .H. A. B WMAN.

Comes of this a tgnt mayrbephtainediior.firecents each by atddressing the Gommi ssimmr o P e l Wg'shington, D. .C. 

